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NGC 4273
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| NGC 4273 | |
|---|---|
 NGC 4273 imaged by the Vera C. Rubin Observatory | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 19m 56.0407s[1] |
| Declination | +05° 20′ 36.497″[1] |
| Redshift | 0.007942[1] |
| Heliocentric radial velocity | 2381 ± 2 km/s[1] |
| Distance | 94.72 ± 4.68 Mly (29.040 ± 1.435 Mpc)[1] |
| Group or cluster | NGC 4235 group (LGG 281) |
| Apparent magnitude (V) | 11.9[1] |
| Characteristics | |
| Type | SB(s)c[1] |
| Size | ~68,900 ly (21.12 kpc) (estimated)[1] |
| Apparent size (V) | 2.3′ × 1.5′[1] |
| Other designations | |
| IRAS 12173+0537, 2MASX J12195606+0520361, UGC 7380, MCG +01-32-008, PGC 39738, CGCG 042-028[1] | |
NGC 4273 is a barred spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 2727 ± 24 km/s, which corresponds to a Hubble distance of 131.2 ± 9.3 Mly (40.23 ± 2.84 Mpc).[1] However, 20 non-redshift measurements give a much closer distance of 94.72 ± 4.68 Mly (29.040 ± 1.435 Mpc).[2] It was discovered by German-British astronomer William Herschel on 17 April 1786.[3]
According to A.M. Garcia, NGC 4273 is a member of the NGC 4235 group (also known as LGG 281). This galaxy group contains at least 29 members, of which 18 appear in the New General Catalogue and 4 in the Index Catalogue.[4]
Supernovae
[edit]Two supernovae have been observed in NGC 4273:
- SN 1936A (Type II, mag. 14.5) was discovered by Edwin Hubble and Glenn Moore on 21 January 1936.[a][5][6]
- SN 2008N (Type II, mag. 17.8) was discovered by Alex Filippenko, D. Winslow, and W. Li on 17 January 2008.[7][8]
See also
[edit]Notes
[edit]- ^ Some sources incorrectly list the discovery date of SN 1936A as 2 January 1936.
References
[edit]- ^ a b c d e f g h i j k "Results for object NGC 4273". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 22 November 2024.
- ^ "Distance Results for NGC 4273". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 22 November 2024.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 4273". Celestial Atlas. Retrieved 22 November 2024.
- ^ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
- ^ Hubble, Edwin; Moore, Glenn (1936). "A Super-Nova in the Virgo Cluster". Publications of the Astronomical Society of the Pacific. 48 (282): 108. Bibcode:1936PASP...48..108H. doi:10.1086/124669.
- ^ "SN 1936A". Transient Name Server. IAU. Retrieved 23 June 2025.
- ^ Winslow, D.; Li, W.; Filippenko, A. V. (2008). "Supernova 2008N in NGC 4273". Central Bureau Electronic Telegrams (1215): 1. Bibcode:2008CBET.1215....1W.
- ^ "SN 2008N". Transient Name Server. IAU. Retrieved 22 November 2024.
External links
[edit]
Media related to NGC 4273 at Wikimedia Commons- NGC 4273 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
